Duringthespinningprocess,thematerialwillundergosevereshaping,resultinginchangesinitsstructureandproperties.In order to facilitate users to have a better experience, Deep Drawing Many attempts have been made to upgrade the products, and the results are also very good, and the market performance tends to be in a good state. https://www.richspinning.com/?deepdrawing/
Inordertoimprovetheperformanceofspunpartsandimproveproductquality,heattreatmenttechnologyplaysavitalroleinthespinningprocess.
Heattreatmenthelpspinningbyimprovethematerialproperty
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I.Improvetheshapingpropertiesofmaterials
Beforespinning,properheattreatmentofthematerial,suchasannealing,caneliminatetheresidualstressinsidethematerial,reducethehardnessofthematerial,andimproveitsformability.Thismakesiteasiertoshapethematerialduringspinning,reducingdefectssuchascrackingandbreakage.Forexample,forsomealuminumalloymaterials,afterannealingtreatment,theirelongationissignificantlyincreased,whichcanbetteradapttotherequirementsofthespinningprocess.
II.Improvingthestrengthandhardnessofmaterials
Afterspinning,thestrengthandhardnessofpartswillbeimprovedduetoshaping,butthisstrengtheningeffectmaynotmeettheactualuserequirements.
Thestrengthandhardnessofspunpartscanbefurtherimprovedthroughappropriateheattreatmentprocesses,suchasquenchingandtempering.
Quenchingcanformstrengtheningphasessuchasmartensiteinsidethematerial,andtemperingcanadjustthemorphologyanddistributionofmartensite,
therebyobtaininggoodcomprehensivemechanicalproperties.Forhigh-strengthalloysteelspunparts,afterquenchingandtempering,theirstrengthcanbe
increasedseveraltimestomeettheuserequirementsunderhighloadconditions
III.EliminateresidualstressDuringthespinningprocess
Alargeamountofresidualstresswillbegeneratedinsidethematerial.Iftheseresidualstressesarenoteliminatedintime,thepartswilldeform,
crackandotherproblemsduringsubsequentuse,seriouslyaffectingthereliabilityandservicelifeoftheproduct.
Stressreliefannealingisacommonmethodtoeliminateresidualstressinspunparts.Byheat-insulatingthespunpartsatanappropriatetemperature,
theatomsinsidethematerialdiffuse,therebyreducingtheresidualstresslevel.Generallyspeaking,thehigherthestressreliefannealingtemperature
andthelongertheinsulationtime,thebettertheresidualstresseliminationeffect.However,toohighatemperatureandtoolongatime
maycausethematerialstructuretocoarsenandaffectthemechanicalpropertiesofthematerial,soitisnecessarytomakeareasonablechoicebasedon
thespecificmaterialandspinningprocess.